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S12700 V200R013C00 Command Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.
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The backup-access command configures a backup AC IP address.

The undo backup-access command restores the default backup AC IP address.

By default, no backup AC IP address is configured.


backup-access ip-address ip-address

undo backup-access





ip-address ip-address

Specifies an IPv4 address of the backup AC.

The value is in dotted decimal notation.


AP system profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

In AC backup scenarios, a backup AC IP address is configured so that APs can establish CAPWAP tunnels to the backup AC if they fail to establish CAPWAP tunnels to the primary AC.


  • The configurations of primary-access and backup-access take effect only if both the commands are run to configure different IP addresses.
  • primary-access and backup-access cannot be configured with priority or protect-ac.
  • It is not recommended that primary-access and backup-access be configured with ac protect protect-ac or ac protect priority.
  • The configuration takes effect only after the AP is restarted.
  • The IP addresses specified by primary-access and backup-access must be configured the same as CAPWAP source IP addresses. If the CAPWAP source addresses have been translated using NAT, set the primary-access and backup-access IP addresses to the translated addresses.


# Set the backup AC IP address to

<HUAWEI> system-view
[HUAWEI] wlan 
[HUAWEI-wlan-view] ap-system-profile name sys1
[HUAWEI-wlan-ap-system-prof-sys1] backup-access ip-address
Updated: 2019-04-09

Document ID: EDOC1100065659

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